Szabó János szerk.: Fragmenta Mineralogica Et Palaentologica 26. 2008. (Budapest, 2008)

Shape — High conical-trochiform shell, consisting of many (—20) extremely low whorls with flat surface and distinct carina on lower edge. Suture thin groove along carina of former whorl. Peripher}

7 sharply angular and carinate. Base flat in earlier growth stages but feebly concave in last growth phases; anomphalous, crosssections suggest thick columella. Sculpture — Growth-lines must be extremely fine, but actually not found visible. Surface of lectotype show traces of shell structure, showing layers of accreted material. Adapertural edge of layers on naturally etched shell surface provide impression of feebly prosocline (almost orthocline) growth-lines on whorls, with short prosocyrt lower part along carina. Growth-lines of base strongly opisthocyrt with short prosocyrt part around columella. Few obscure spiral lines also found near columella. Remarks — The remnants of the columellar region are indicative of a simple inner lip, therefore attribution to Epulotrochus seems the best solution. However, the growthlines, that are almost orthocline on the whorls, not observed yet in other species of similar shell habit; they are usually strongly prosocline in Epulotrochus. This feature, the lack of the initial, and well preserved final shell parts mean some uncertainty

7 of the systematical place. Distribution — Hallstatt, Hierlatz Alpe, Upper Sinemurian (Oxynotum Zone), Kratzalpe at Golling Upper Sinemurian (Obtusum Zone). Figure 61 — Epulotrochus carinifer (HÖRNES, 1853), lectotype. — 15 a-b: copy of STOLICZKA (1861) Trochus carinifer HÖRN, figures from Tafel I; A-D: lectotype in lateral (A, C) and basal (B, D) views, A-B = xl, C-D = x2; E: traces of the ornament and the shell structure that did not disappear in spite of the strong recrystallisauon; x7. Epulotrochus? morpheus (STOLICZKA, 1861) (Figure 62) 1861: Trochus Morpheus STOL. — STOLICZKA, p. 170, pl. 1, fig. 16. Lectotype — GBa 2008/69/13/1 (selected here). Material — Two specimens. Measurements H HL lectotype **7 *2.3 IIP *1.3 Shape — Small, trochiform species of numerous, low whorls (13 in lectotype) and blunt apex. Protoconch depressed, almost planispiral with two feebly convex whorls following nucleus. From second volution, two strong carinae appear on whorls, one just above, other just below suture, forming this way rather deep suturai canal; carinae remain on shell in next growth phases. Subsequent whorls concave between carinae. Upper carina becomes less marked swelling on last 2—3 whorls. Periphery sharp, base feebly convex with shallow, central depression but without umbilicus. Peristome not preserved in the available material but short columellar lip inferable from cross section of last whorl. Sculpture — Subsutural carina tubercled after protoconch, except last whorls. Last tubercles became collabrally elongate (like in Epulotrochus tuherculatus n. sp., see above) just before their gradual vanishing. Growth lines extremely fine, strongly prosocline on whorls and falciform (opisthocyrt way) on base. Remarks — The short columellar lip that is inferable from the shape of the available remnants, indicate an Epulotrochus species, however, belonging to another, similarly shaped, and anomphalous genus can D *4 *2.5 AA *29

c AL *33

c not be still excluded. Epulotrochus tuherculatus n. sp. has comparable shell shape and ornment, but its adult size (about 2 times larger), the different whorl-surface profile (without carinae) and the ornament distinguish it from Epulotrochus? morpheus (see more details above). Distribution — Hallstatt, Hierlatz Alpe, Upper Sinemurian (Oxynotum Zone); Kratzalpe at Golling, Upper Sinemurian (Obtusum Zone). Figure 62 — Epulotrochus? morpheus (STOLICZKA, 1861), lectotype. — 16 a—c: copy of the original figures from STOLICZKA (1861) Tafel I; A-F: lectotype in oblique apertural (A, D), dorsal (B, E) and basal (C, F) views, A-C = Xl, D-F = X2.5.